Fix quadicon click locator to use link element
Merge pull request #712 from weissjeffm/quadicon-fix

Fix quadicon click locator to use link element
Added artifactor
Minor changes
Fixed a few bugs in the context passing
Proof of multi_instance of single plugin test
Fixed hook call
Testing for hook name before calling
Callbacks for pre and post hook
Allow multiple callbacks for per and post hook
Context and docs
Caching of funcsig data ready for inspection
Hook arg checking